China-kiln attachment.



D; M. CAMPANA. CHINA KILN ATTACHMENT. APPLICAT|0N FILED OCT. 29, 19!].

Patented Aug. 13, 1918.

llllm ug AM n F? "H DOMENIC M. GAMPANA, OF CHICAGO," ILLINOIS. V

CHINA-KILN ATTACHMENT.

ToaZZ whomiz't may concern:

fBe it known thatI, DOMENIG M. CAIVF' PANA, a citizen of the UnitedStates, residing at..Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inChina-Kiln Attachments, of which the following is a specification. w

My invention relates to china kiln attachments, and has'for-one of itsobjects the provision of a simple and efiicient attachment for insertingin china kilns, and the like, to provide even temperatures in the partof the interior of the kiln, or the like, inside of the attachment. 1

A further object is the provision'of an attachment, such as mentioned,which can be easily and quickly fitted in and taken out of a china kiln,or thelike, and one which can be easily and quickly taken apart andputtogether. Y 1 I Other objects will appear hereinafter.

Anembodiment of my invention is shown in the accompanying drawing,forming a part of this specification, and in which 7 Figure 1' is afront view of a conventional china kiln with its door open and fittedwith an attachment embodying my invention.

' Fig; 2 is a side view of an embodiment of my attachment with a portionbroken away to show parts of the interior; and

Fig. 3 is an enlargedsection taken on line 3-3of Fig. 2. w r

In chinai'kilns of conventional construction there are highertemperatures at the lower'portion of the-kiln than the upper due to thesource-of heat being situated-in the bottom of the kiln. Also theinterior. of the kiln sometimes'has drafts and other unevenly heatedportions therein. These uneven temperatures in the kiln make}itdifficult to fire substances, such as glassware, which have tendenciesto become soft, lose their shape and collapse when heated too stronglyat their base or at one special side. My attachment is to provide aneven temperature, top, bottom and at the sides, making the firing ofglassware or the like more perfect and correct. 7

Referring more particularly to the drawing, I have indicated a chinakiln 5, which may be of any conventional or preferred form, having adoor 6, which is usual with such kilns. My attachment comprises ahousing or walls which have comparatively high heat conducting qualitiesand which Specification of Letters I 'atent.

' Patented Aug. 13, 1918.

Application filed October 29, 1917. Serial N 0. 199,215.

are adapted to entirely inclose a portion of the interior of the kiln.As an example of such a housing, I have shown .a sheet,

metal housing comprising an upper portion 7 and 'a'lower portion 8. Theportion 7 includes the top and upper halves of'the side walls of myattachment, and the lower half 8- includes the lower portions of theside walls and the. bottom of my attachment.- The part 7 is providedwith the up per portion 9 of a rear wall, and the portion 8 is providedwith the lower portion 10 of the rear end wall, When these parts aretogether, as indicated in Fig. 1, the sides of the housing are allclosed, except the front side. This front side is adapted,

when the attachment is in a kiln, to be very.

close to and substantially closed by the door 6 of the kiln, so thatthere is very little or no circulation of the air in the kilnfrom theoutside of the attachment to the inside thereof. Thisarrangement'provides means whereby the interior of the attachment isheated by the heatpassing through the walls of the housing thereof. Withthis arrangementvthe temperature oftheinterior of the houslngi issubstantially uniform through out. Therefore, glassware, or othersimilar objects, can be placed in the upper and lower portions of thisattachment without danger of injuring any of them. In placing glassware,and the like, in the ordinary kilns, owing to the strong heat at thebottom and at the farther part of the kiln back from the door,-aquantity of glass pieces will collapse,.while other glasses placed onshelves nearer the door or toward the upper part of thelkiln, will befired correctly or even not fired enough to properly carry out the color decorations.

" The housing shown is provided with flanges 11 and 12 on the portions 7and 8,

respectively, with registering perforations 13 in said flanges. Intheperforations 13 are provided pins 14. It will be seen from thisconstruction that the upper part of the housing can be lifted directlyoff the lower portion when not in a kiln to separate the parts, or thepins 14 may be removed from the perforations, and the parts separated.This illustrates an easy means for connecting the upper and lower partsof the housing. At the rear of the housing on the portions 9 and 10, Iprovide flanges 15, or an other suitable extensions to engage the bacwall 16 of the kiln in order to hold the open side of the'housing inclose proximity to the door 6 of the kiln when the latter is closed. Theflanges 11 and 12 also have the function of holding the attachment insubstantially the center of the kiln and preventing the sides of theattachment from engaging the sides of the kiln, thereby insuring an airspace between the sides of the kiln and my attachment at all times.

In the attachment I preferably provide a plurality of shelves so that anumber of articles, such as indicated at 17 in Fig. 1, may beaccommodated at one time. These shelves are preferably supported byledges 18 on the inner walls of the housing.

The lateral edges of at least the shelf nearest the middle of thehousing are preferably in close proximity to the inner walls of thehousing. Hook members 19 are formed on certain of the ledges 18,adjacent the open side of the housin which engage hook members 20 on oneo the shelves 21. This arrangement provides means where by the sides ofthe housing, adjacent the opening in the latter, are heldagainst'lateral movements both toward and away from each other.

The top and bottom of the housing are preferably semi-cylindrical orcurved upwardly and downwardly, respectively, in order to preventforming sharp corners on the interior of the attachment, and to providemeans so that the heat in the interior of the kiln outside of thehousing can easily pass up around the attachment. In order to hold thebottom of the attachment above the bottom of the kiln, I have providedlegs 22, which may be secured to the lower portion 8 of the housing inany desirable manner, such as by rivets'23.

While I have illustrated and described the preferred form of myinvention, I do notdesire to be limitedto the precise details set forth,but desire to avail myself of such variations and changes as come withinthe scope of the appended claims.

I claim:

1. In combination, a china kiln having-a door atone :sidethereof; ahousing in the kiln having an opening in its side adjacent the door; andan extension on the housing intermediategthe top and bottom of thelatter adapted to engage the inner wall of the kiln'oppositethe door andhold the housing in a position with its open side substantially ing insaid kiln and holding the open side of said housing close to the door ofthe kiln.v c

3. An attachment forchina kilns comprising: a housing made up of a top,a bottom, side walls and one end wall with the other end of thehousing-open and said end and side walls being divided on asubstantially horizontal plane; means loosely connecting the portions ofsaidv end and side walls together; ledges on theside walls along thedivision of the latter; hook members on the ledges adjacent the open endof said housing; and a shelf on said ledges having hooked portionsthereonv engaging said hook members and holding the side walls againstspreading.

4. An attachment for china kilnscomprising a sheet metal housing havingone side open and made up of upperand lowerpore tions; means-holding theengaging edges of the upper and lower portions against rela. tivelateral displacement; ledges on the in-, ner walls of one of saidportions extending alongtheadjacent edges of said portions andterminating close to the open side of the housing; hook members on theledges at the open side of the housing; and a shelf: restingon theledges and having partsengaging said hook members. 1

In testimony whereof I have signed mynameto this specification on, this24th day of October A; ,D. 1917 DOMENIC M; CAMPANA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of, intents,-i

' 7 Washington, D. 0,. V

